Chemical vessel.



PATENTED MAY 8, 1906.

W. KIEL.

CHEMICAL VESSEL.

APPLIGATION FILED DB0 23 1904 2 SHEETS-SHEET 1.

PATENTED MAY 8, 1906.

W. KIEL.

CHEMICAL VESSEL.

APrLIoATloN FILED 1730.23.1904.

2 SHEETS-#SHEET 2.

cnpcnlz WILMALKEL Q. y

UNITED (STATES.

PATENT oFFroE.

WILLIAM KIEL, OF BUTLER, NEW JERSEY, ASSIGNOR TO AMERICAN HARD RUBBER COMPANY, A CORPORATION OF NEW YORK.

CHEMICAL VESSEL.

Specification of Letters Patent.

ll'atented May 8, 1906.

Application `filed December 23,1904. Serial No. 238,057.

' To all whom t may concern;

Be it known that I, WILLIAM KIEL, a citi 5 Jersey, have invented certain new and useful Improvements in Chemical Vessels, of which the following is aspecification.

This invention relates to chemical vessels.

By the term chemical vessels I include battery-cells, photographic trays and baths, acid-tanks, and other vessels of the sort, although it is of courseunderstood that my invention is applicable to vessels without regard to the purpose for which they are to be used.

The object of the invention is to reduce the liability of such vessels to breakage and to prevent disastrous effects from any accident which may occur to them.

Otherv objects of the invention will appear in the course of description and will be pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of a battery-cell in part.

broken away toy show its construction. Figs. 2 and 3 are res ectively vertical and hori- `zontal sections o the same. Figs. 4, 5, and 6 are respectively vertical and horizontal sections and abottom plan view of a somewhat modified form of the cell. a

Referring first to Figs. 1, 2, and 3, 1 and 2 represent, res ectively, the inner and -outer .layers of the ouble wall of the cell, the inner of which may be made of relatively hard vulcanizable material, such as a rubber compound, and the outer of a relatively softer material of thesame or similar com osition, the two `being firmly adhered toget er preferably by the process of vulcanizing. As these cells with vertical walls shown are conveniently made from sheets of vulcanizable material bent to the proper form, it is of great advantage that the seams or joints by which the edges of the sheets are j omed should not be superposed in the two layers, or, in other words, so that the arrangement should be such that the seam of each layer, and particularly that of the inner layer, should be covered by a continuous portion of the other layer. f As show-n in Fig.. l, the seam 3 of the inner .a er and the seam 4 of the other layer are at yiametrically opposite ,sides of the vessel. I have shown the outer layer 2 asformed of a sheet of sufficient length to extend to the upper edge of the inner layer 1 and to fold under the erimeter only of the bottom 5 of the cell. T e battery-cell shown may be conveniently provided with wedge-shaped ribs 6', secured upon its bottom 5, and I preferably attach immediately beneath these and on the lower side of the base 5 of the vessel strips 'Z which may well be of the same relatively soft material as that of which the wall 2 is composed.

In the form of construction shown in Figs.

4, 5, and 6 the bottom 5 of the vessel isV shown as eXteriorly covered with a layer 8 of Vartiiicially corrugated or'roughened material softer than that comprising the inner layer 1 of the cell and adapted Ato form a somewhat yielding cushion for the cell as well as to prevent slipping upon any smooth surface.

le my invention relates primarily and especially to a cell of relatively hard rubber covered by an outer layer of a softer rubber, it is obvious that the invention broadly consid'ered is not limited to the terials described, but consists 1n a vessel having walls in a plurality of layers, the inner of which is relatively harder than the other, the layers being rnil and permanently adhered together.` It is a so evident thatmy invention is not limited to any particular form of vessel or to the purpose to which it is to Abe afterward applied.vv l V Having thus described my invention, what I claim, and desire to secure. by Letters Patent, is 1. A vessel having a wall composed of layers of vnlcanizable material, one layer 'of which is harder than the other.

2; A vessel having a wall comprised of layers of vulcanizable material, the inner layer of which is harder than the other.

3. A vessel having a wall comprised of lay-"i crs united by vulcanizing, one of said layers containing a greater proportion of plastic material than the other.

4. A vessel having a wall comprisedV of layers united by vulcanizing, the mneriof said layers containing a greater proportion of plastic material than the other.V

l5. A vessel having a wall of hard rubberA articular macovered With a relatively soft material perhardness permanentlyadhered together. l,

7. A vessel having a Wall composed of layers of rubber compound of different grades of hardness vulcanized together.

8. A vessel having a Wall composed of layers of rubber compound, the inner of which is harder than the outer.

9. A vessel having a Wall composed of layers of rubber compound, the innerof Which contains a smaller proportion of rubber than the other.

10. A vessel having Walls of relatively hard material and a layer of relatively soit material covering and adhered to its side walls and extending under the periphery only of its base.

1 1. Afvessel having Walls of relatively hard material, a layer'of relatively soft material covering and adhered to its side Walls and eX- tending under the periphery only offits base,

and a separate portion of relatively soft material secured to its base.l

12. A vessel having Walls of relatively hard material, a layer of relatively soft material covering and adhered to its side Walls and'extending under the periphery only of its base, and a separate portion of relatively soft material secured to and covering its base.

' 13. A vessel having Walls of relatively hard material, a layer of relativelyV soft material covering and adhered to its side walls'and eX- tending under the periphery only of its base, and a se arate portion of relatively soft and artificial y-roughened material secured to its 17. A receptacle for chemicals formed of alayer of hard-rubber compound and a layer of soft-rubber compound vulcanized together, the hard rubber being upon the interior and the soft rubber upon the exterior.

18. A receptacle for chemicals having lts Walls formed of composite material, namely, soft and hard rubber composition, vulcanized. In testimony whereof I have signed this specification in the presence of two subscrib ing Witnesses.

WILLIAM KIEL. Witnesses:

PAUL WITLOCK, GEORGE J. FRITZ. 

